Connection to ECU_R refused during configuration

[RastaChaum]

Requirements for submitting a bug

Help us by sharing us the relevant home-assistant.log part.

Cette erreur provient d'une intégration personnalisée

Enregistreur: custom_components.apsystems_ecu_reader.config_flow
Source: custom_components/apsystems_ecu_reader/config_flow.py:121
intégration: APsystems ECU Reader (documentation, problèmes)
S'est produit pour la première fois: 11:20:33 (3 occurrences)
Dernier enregistrement: 13:34:33

APsystemsInvalidData exception: failed to claim socket after 5 attempts

Expected Behavior

Should connect to AP System ECU_R

Current Behavior

When validating ECU Confirguration, saying : Aucune ECU trouvée à cette adresse IP ou l'ECU est en train de récupérer d'un redémarrage

Possible Solution

Steps to Reproduce

Just adding the integration and following step by step configuration manual...

Home Assistant hardware

• Raspberry Pi
• Docker container
• Virtual Machine
  - Core : 2025.4.4
  - Supervisor : 2025.04.1
  - Operating System: 15.2
  - Interface utilisateur: 20250411.0
• Other

PV-hardware

Providing context helps us come up with a solution that is most useful in the real world

• ECU-B

• ECU-R (2160 series)

• ECU-R-Pro (2162 series)

• ECU-C

• ECU-3

• DS3 series

• QS series

• QT series

• YC series

APsystems ECU Reader v2.7.2

Notes

For now, i used the previous unmaintened integration : https://github.com/ksheumaker. I never had problem to connect to ùy ECU_R.
But, like i saw that this integration isn't maintened anymore, i try to migrate to this new one :

• i removed the old
• i downloaded the new
• and now, i'm trying to configure my ECU system without success ! :( :(

I'm sure of my IP. When scanning open port, i have just 2 opened ports (but not the one specifiy in the doc) :

nc -z -v 192.168.1.88 1-65535 2>&1 | grep -v 'Connection refused' 
Connection to 192.168.1.88 502 port [tcp/*] succeeded!
Connection to 192.168.1.88 4540 port [tcp/*] succeeded!

[HAEdwin]

I converted this to a discussion because it is not a bug. When you use the nc -v {ip-address} 8899 command you should get a prompt immediately and you can input the APS command.

If you don't get this prompt, you don't have the correct IP address of your ECU or since you are running HA on a VM I think the port is not open. Check the VM configuration.